Flight OddsWN4089 MDW → STL
Southwest Airlines · Chicago, IL to St. Louis, MO · 42 flights observed, 2025-11-02 to 2026-01-05 · 251 mi
WN4089 covers more than one route in the data window — the stats below are for MDW → STL, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
95%
Median delay
-14 min
90th percentile
+6 min
Cancellation rate
0%
How often is WN4089 on time?
Across 42 flights on MDW → STL from 2025-11-02 to 2026-01-05, WN4089 arrived within 15 minutes of schedule 95% of the time. The median arrival delay was -14 min, and the worst 10% of flights arrived +6 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 40 | 95% |
| 16-30 min | 0 | 0% |
| 31-60 min | 1 | 2% |
| 61-120 min | 1 | 2% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-11 | 24 | 96% | -13 min |
| 2025-12 | 17 | 94% | -6 min |
| 2026-01 | 1 | 100% | -13 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 7 | 100% |
| Tue | 6 | 83% |
| Wed | 6 | 100% |
| Thu | 6 | 100% |
| Fri | 6 | 100% |
| Sat | 4 | 100% |
| Sun | 7 | 86% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…